Utrecht, Netherlands

Sérgio Giraldo

I am a proven hands-on leader, coaching and mentoring teams to their highest performance level, using agile and lean approaches, in close collaboration with stakeholders. On top of that, I have more than 25 years of experience in software engineering and software architecture, working in solutions end to end and I have been using data insights to guide projects and shape decisions successfully. 

Work Experience

IT Lead                                                              ING                                                            Jan 2020 - Present

Data Foundation team                                 Amsterdam, Netherlands

      Leading area with 90+ engineers, responsible to provide finance and risk data for business areas;

      Implementation of Datawarehouse hosting Finance and Risk data from all countries where ING operates. First project in the bank using a 100% public cloud solution on Microsoft Azure. The DW uses Azure CosmosDB Cluster for storage, Apache Airflow for orchestration and PowerBI for visualization. Ingestion of data uses a hybrid solution, some use cases with Python+Kafka, others use IBM DataStage. Everything in the project relies on continuous integration and continuous delivery, leveraged by Terraform scripts;

      Implementation of data integration platform for the Finance and Risk domain. First platform in the bank 100% open source based (Python + Docker + Swarm + KeyDB + Kafka + Elastic + Kibana). Platform does not have scheduling; it is an event driven OLRT solution;

      Technical leadership of major initiatives, including architectural and design decisions, choice of platform/vendor/tools and even PR reviews for some deployments;

      Managerial activities including budget control, compliance, audits, tactical & strategic roadmaps, people management (internal and offshore strategies) and career guidance.


IT Lead                                                              PagBank                                                              2017 - 2019

Data Science team                                             São Paulo, Brazil

      Leading area with 10 data scientists, responsible to provide data models and data insights for all business areas of the company, in a fast-paced hyper-growth environment. First team in the company using data science and machine learning using data for decision making;

      Coach the team regarding data science, deep learning and machine learning issues (algorithms, programming (R, Python, SQL), business modelling);

      Responsible to determine first clients eligible to open an account in the PagBank, analyzing their cash flow and sales trends;  reduced the time to solve disputes in backoffice area by 60% using semantic analysis; at logistics, reduced by 150K BRL/month the cost of sending paper roll to our vendors, by means of logistic regression with L1 regularization; improved the accuracy from our chatbot to 87% implementing word2vec algorithms.


Tech Leader                                                        Globant                                                              2015 - 2016

                                                                         São Paulo, Brazil

      Helped Brazilian companies, leaders in their segments (Totvs, Embraer, Qualicorp), to deliver software projects using agile, data driven insights and best development practices, acting as a consultant.


Development Manager                                     HSBC                                                                  2014 - 2015

                                                                         São Paulo, Brazil

      Redesign of Global Markets Backoffice area for a straight-trough process system without intervention.


Software Architect and Tech Leader                 Itaú                                                                     2014 - 2015

                                                                         São Paulo, Brazil

      Redesign of Market Risk platform to support Basel II requirements.

Language, Technologies, and Methodologies


      Portuguese - fluent

      English – fluent 

      Spanish – business proficiency 

      Dutch – limited proficiency 


      Programming: C#, Java, Rust, Python, R, PHP, Javascript, SQL

      Databases: SQLServer, PostgresQL, MySQL, NoSQL (MongoDB, KeyDB)

      Cloud: Azure, AWS, Terraform





      Design Thinking


Education and Certifications

      M.Sc. Software Architecture, University of São Paulo (USP).                                                              2018

      Specialization, Risk Management, BM&FBOVESPA Institute                                                              2013

      B.Sc. Physics, University of São Paulo (USP).                                                                                     2005


      PMI – Agile Certified Practitioner

      Professional Scrum Master

      Azure Fundamentals & Data